The university said the recording of an Alpha Tau Omega pledge that surfaced on social media ‘appears to be credible video evidence’ of hazing allegationsIndiana University said on Thursday it has suspended the local chapter of the Alpha Tau Omega fraternity while it investigates a video purportedly showing a pledge performing a sex act on a woman during an apparent hazing ritual.The university said the recording that surfaced on social media “appears to be credible video evidence” of the hazing allegations.